Question

multiple - choice question
what makes visible light special?
absolutely nothing, our eyes are just built to detect it
it travels faster than all of the other em waves
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Explanation:

Visible light is part of the electromagnetic (EM) spectrum. All EM waves travel at the speed of light (\(c = 3\times10^{8}\space m/s\)) in a vacuum. The reason we can see visible light is that our eyes have photoreceptor cells (rods and cones) that are sensitive to the wavelengths of visible light (\(400 - 700\space nm\)). There is nothing inherently'special' about the physical properties of visible light compared to other EM waves in terms of fundamental wave - like properties (such as speed in a vacuum). It is the biological adaptation of our eyes to detect this particular range of wavelengths that makes it seem'special' to us.

Answer:

absolutely nothing, our eyes are just built to detect it